Friday, December 17, 2010, 11:00 am, hosted the first stage of the Regional Mathematics Contest "Tournament”.
(http://www.mateinfo.ro/the-news/630-concursul-regional-de-matematica-qturnirq)
The competition is open to fourth grade students and will.
At this “tournament”, our class was attended by 16 "knights and ladies".
Subiectele/ Topics
1. Se da expresia/It gives expression
89 + [104 – ( a : 100 x 2 + 8 )]: 9 = 99
Calculate suma dintre numarul “a” , predecesorul si succesorul sau!
Calculate the sum of the number ”a” , predecessor and successor.
2. O familie este formata din doi parinti si 4 fii. Varstele copiilor sunt date de numere consecutive. Varstele parintilor sunt triplul a doi dintre copii, tatal fiind mai varstnic. Afla varsta fiecarui membru al familiei, stiind ca suma varstelor este de 128 de ani.
A family consists of two parents and four sons. Ages of children are given consecutive numbers. Ages of the parents of two children are three times, the father is elderly. Find age of each family member, knowing that the sum of ages is 128 years.
3. 5 kg de portocale si 7 kg de struguri contin 8300 calorii. 9 kg de portocale si 14 kg de struguri contin 16200 calorii. Cate calorii contine 1 kg de struguri? Dar unul de portocale ?
5 kg of grapes and 7 kg of oranges contain 8300 calories.
9 kg of grapes and 14 kg of oranges contain 16200 calories.
How many calories contains1 kg of grapes? But 1 kg of oranges?
Timp de lucru: 1 ora
Toate subiectele sunt obligatorii. Se cer redactari complete.
Fiecare subiect valoreaza 10 puncte.
Nu se acorda puncte din oficiu.
1 hour working time
All subjects are compulsory. It takes full editing.
Each subject is worth 10 points.
No points are awarded automatically.
